Method for preparing fluorinated graphene through microwave hydrothermal method

A technology of fluorinated graphene and microwave hydrothermal method, applied in graphene, nano-carbon and other directions, can solve the problems of complex equipment required for the reaction, harsh reaction conditions, and high cost of raw materials, so that it is easy to popularize and use, and has few influencing factors. , the effect of reducing energy consumption
CN103288069AInactive Publication Date: 2013-09-11NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2013-09-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for preparing fluorinated graphene through a microwave hydrothermal method. The fluorinated graphene is prepared by employing the microwave hydrothermal method and is rapidly heated by utilizing the change of the electric field and magnetic field in the space, the low-temperature (150-200 DEG C) temperature is realized, the reaction time (30-60 minutes) is greatly shortened, the energy consumption is reduced, and the preparation efficiency is improved. The adopted preparation method does not have temperature gradient in the reaction process, a hysteresis effect is avoided, and the reaction process is easy to control and fewer in influence factors; and the prepared fluorinated graphene is uniform in fluorine doping and high in experimental repeatability. The process conditions such as raw material ratio, reaction temperature and reaction time are adjusted, and the fluorinated graphene of different fluorine contents can be prepared. The prepared fluorinated graphene is high in yield, and the yield is up to 90-95 percent. The preparation method is easily popularized and applied.
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Description

technical field

[0001] The invention belongs to the field of material synthesis chemistry, and in particular relates to a method for preparing fluorinated graphene by a microwave hydrothermal method. Background technique

[0002] Graphene is a two-dimensional material with carbon atoms arranged in a hexagonal grid. Since 2004, the Geim group of the University of Manchester in the United Kingdom has prepared and observed the existence of single-layer graphene by tape stripping method. Graphene has become a hot spot in nanomaterial research because of its excellent optical, electrical, mechanical, thermal, and magnetic properties. The fluorination of graphene is an effective method to tune the electronic structure and physicochemical properties of graphene materials. Studies have shown that with different degrees of fluorination, the band gap of fluorinated graphene can be adjusted from 0eV to 3eV, and the highest band gap can reach 3.1eV. Fluorinated graphene has potential ...

Claims

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